def kyu_in_atcoder():
    X = int(input())
    lis = [10 - i for i in range(10)]
    x = X // 200
    print(lis[x])
kyu_in_atcoder() def kyu_in_atcoder():
    X = int(input())
    lis = [10 - i for i in range(10)]
    x = X // 200
    print(lis[x]) kyu_in_atcoder X = int(input()) X int(input()) int input() input 10 - i for i in range(10) for i in range(10) i range(10) range 10 for i in range(10) 10 - i 10 i lis = [10 - i for i in range(10)] lis [10 - i for i in range(10)] x = X // 200 x X // 200 X 200 print(lis[x]) print lis[x] lis x kyu_in_atcoder() kyu_in_atcoder def kyu_in_atcoder():
    X = int(input())
    lis = [10 - i for i in range(10)]
    x = X // 200
    print(lis[x]) def kyu_in_atcoder():
    X = int(input())
    lis = [10 - i for i in range(10)]
    x = X // 200
    print(lis[x]) kyu_in_atcoder
def kyu_in_atcoder():
    X = int(input())
    lis = [10 - i for i in range(10)]
    x = X // 200
    print(lis[x])
kyu_in_atcoder()